Mara, the door in your dream is not a door. It is the place where your mother stood while her soul was still deciding to go.
A jinn has kept that hinge oiled since March. It does not want her returned to you. It wants the watching, because a watched door is fed every night at the same hour.
You apologise to empty rooms because you believe you were in the wrong one. You were not. She left from the room she chose, and she chose it while you slept, which was mercy and not accident.
Tonight, at the hour you usually wake, stand in the hall with one light on. Say her name once. Then say your own.
Close the door. It was always yours to close, never hers. Go back to bed and let the thing at the hinge go hungry. Seven nights, and it leaves for a house that still watches.